Fluid-dispensing device



April E. P. SUNDHOLYM 2,239,531

FLUID-DISPENSING DEVICE F iled Nov. 9, 1939 2 Shoots-Sheet 1 Eiw z'n Jul-(Itch ATTORNEY.

April 22, 1941. E. P. SUNDHOLM FLUID-DISPENSING DEVICE 7 2 Sheet s-Sheet 2 Filed Nov. 9, 1939 Patented Apr. 22, 1941 UNITED STATES IPATEIN T OFFICE The present invention relates to a certain new and useful fluid-dispensing device, and it relates more particuiarlyto certain novel means for transferring fluids such as greases, printers inks,

and the like, from a'large container, as for instance, an original shipping container, into small hand -type dispensers, as for instance, grease guns shown in oo-pending applications Serial Numbers 236,281, 303,655, 303,657 and 319,386.

One of the problems in handling fluids such as greases, printers inks and the like, is to transfer the fluid from the relatively large container containing ten, fifty, or one hundred or more pounds, into the reservoirs of small hand-dispensing devices such as grease-guns, without pouring or otherwise handling the fluid in the open in the act of transferring, that is, without ladling or dipping or pouring the fluid from the original container to the reservoir of the grease-gun.

One of the objects of the present invention is to provide means whereby the reservoir or socalled barre1'of a hand-type grease-gun or the like and the original grease-dispensing container may be so related to each other during the act of filling the grease-gun barrel from the original grease container, as to permit the grease container to be open and shut while the barrel of the grease-gun is attachedthereto by a valve closing and opening operation through the grease-gun. I 7

With the above and other objects in view which will appear more fully from the following detailed description, the present invention consists of a novel relationship between the piston-operating rod and rod handle of the grease-gun barrel" and the shut-off means in the gun-receiving socket of a grease-dispensing container adapted for filling said grease-gun barrel, whereby the shut-off means of said grease-dispensing con tainer may be open and closed by and through either a rotary or a reciprocatory motion, or both, of the piston-operating rod and rod handle of the barrel of the greasegun.

The present invention further consists of other novel features and details of construction, all of which will appear more fully from the following detailed description and accompanying drawings.

For the purpose of illustrating the invention, there is shown in the accompanying drawings forms thereof which are atpresent preferred, since the same have been found in practice to give satisfactory and reliable results, although it is to be understood that the various instrumentalitiesof which the invention consists can be invention is not limited to the precise arrangement and organizationpf the instrumentalities as herein shown and described. Referring to the drawings in which like reference characters indicate like parts,

Figure 1 represents a vertical cross-sectional view of the, fluid-dispensing device embodying the present invention shown in one of its operative conditions, I

Figure 2 represents an enlarged fragmentary cross-sectional view of a portion thereof similar to that shown in Figure 1 on a much enlarged Figure 3 represents a fragmentary end elevationai view of the form of construction shown in Figures 1 and 2 taken generally on line 3-3 of Figure 2.

Figure 4 represents a fragmentary cross-sectional view similar to that shown in Figure 2 but of a somewhat modified form of construction.

taken generally on lined-4 of Figure 5.

Figure 5 represents an end view, similar to that shown in Figure 3, but of the form of construction shown in Figure 4 and taken generally on line 5-5 of Figure 4.

Figure 6 represents an end elevational view of the central rod-receiving socket similar to that shown in 3 and 5, but of a further modified form of construction.

Figure 7 represents afragmentary perspective "view of the end of an operating rod of a gun barrel to fit the socket shown in Figure 6.

The fluid-dispensing device of the present in- M vention includes the dispensing container designated generally by the numeral I ii, and the gun barrel designated generally by the numeral ll, which are adapted to co-act with each other in variously arranged and org nized and that the the general manner indicated in Figures 1, 2 and 4, in such a manner that fluid, such as grease, oil or other lubricant, or other similar fluids may 'be transferred from the dispensing container Hi to the'gun barrel i I without any loss of fluid by permitting the passageway from the container It to the gun barrel I I to be opened and shut, at will, by and through the operating'rod i2 and rod handle i3 of the grease-gun barrel,

The container It includes the generally upright sheet-metal wall H which may be cylindrical or any other shape, into the lower end of which the inverted cup-shaped bottom unit J5 is telescoped, having bottom wall l6, and cylindrical flange portion H, which latter is seamed to the side wall II by the interlapped, crimped seam 18. A channel I9 is pressed downwardly from the bottom wall l6 and me ges withthe flange channel l6 to form therewith a lateral passage- T way 23. The cover plate 2| is either made shorter than the channel l6, or is provided with a hole 24, so as'to give communication between i the interior of the container and the channel 23.

A boss 25 having a fiat end wall 26 is pressed out of the side wall l4. Aligned apertures 21 and 28 are formed in the apron 22 and in the 7 boss wall 26, of the generally elongated contour shown in Figures 3 and 5. A generally cup- 'disengagedfrom the bayonet slot 52 and is' adshaped gun-receiving socket 26., formed in any i suitable manner, but preferably stamped out oi sheet metal of suitable gauge, is juxtaposed to the fiat end wall 26 of the boss 25.. A port opening 30 is provided in the end-wall 3| of the socket 26, in registration with openings 21 and 28, and from the opening 30 a crimping sleeve or flange 321s drawn, which is extended through the openings 21 and 28 and is flared or crimpedover as I at 33, to fluid-tight seal. The socket is screwthreaded as at 3 4, to. receive the threaded end 35 of the gun barrel A sealing gasket 36 is inserted in the socket to seal against the end of the gun barrel. A shut-off, which may comprise a disc 31 of sheet-metal or the like, is pivotally mounted within the socket, having a port 38 similar to the port 38, and having preferably an arcuate channel 36 pressed outwardly therefrom, of suitable arcuate extent, in registration with a stop projection or abutment 46 pressed out of the wall 3| of the socket 26 or otherwise provided thereon, tolimit the rotary motion of the shut-oi! 31, to the open and 0108i 1 positions of the port 36 thereof.

In the form of construction shown in Figure 2 asquare (or other polygonal or irregular) socket 4| is pressed into the sheet metal of the shut-off 31, to receive the square (or other polygonal or irregular) head 42 of the pivot member 43, the stem of which extends through suitable central apertures in the shut-off 31 as well as in the wall 3| of the socket .26 and the wall 26 of the boss 25, and is then riveted over or otherwise secured at its inner end as at 44. .If desired a slightly dished spring steel washer 45 may be interposed beneath the head 44, to give slight axial tension to the pivot stem 43, so as to tend to keep the shut-off 31 pressed against the wall 3| of the instance by merely soldering, welding or spotwelding the head 42 to the shut-off 31, which in I that event could be left flat without the socket 4| pressed therein. Likewise, if desired, the pivot hole through the shut-off 31 can be made square "barrel to',enter any one of the slots 48 by advancing the rod l2 in the direction of the arrow 5|. j The follower piston 43 is first advanced to its extreme forward position near the front end 35 of the gun barrel H, by engaging the pin 50 in the transverse slot 52 of the bushing 53 which forms a part ofthe assembly of the piston 46, and then pushing the rod forward in the direction of the arrow 5| until the piston has reached its limiting position. Then the gun barrel II is secured into the socket 26 and the rod 12 is then the rod enters the central opening 46 and until the pin 58 enters one of the slots 48. The handle I3 is then rotated in the direction necessary to turn the shut-off 31 into its open position. In the form of construction shown, this is in the clockwise direction, although it could be arranged in the opposite direction. Thereafter the rod I2 is pulled out in the direction of the arrow 54, thereby to retract the piston 49 to its rearmost position and thereby to suck grease or other fluid from the container l0 into the gun When the gun barrel has thus been filled the nod i2 is again advanced forward in the direction of the arrow 5|, tore-enter the' counter-clockwise direction. Then the gun barrel II is unscrewed from the socket 26, and is screwed into the conventional grease gun head? or into the grease gun head or pump "hes/d shown in co-pending application Serial No. 303,- 657. i

I Whenever the gun barrel II is empty or requires to be replenished, the operation is re peated. Likewise, if for any reason it should be desirable to replace the contents or partial contents of the gun barrel i into the dispensing container III, the same may be done by a reversal of the operation hereinabove described.

In Figures 4 and 5 'a-modified form of construction is shown injwhich one or more arcuately spaced projections 56 are pressed out of tween and with central clearances 58 therebetween, to'receive the end of the rod l2. In this form of construction the pivot 43 is riveted \over at both ends 44 and 56 and serves merely as a pivot.

In Figure 6 there is shown a modified form of construction in. which the pivot head 42 is or'other polygonal shape, and that part of the pivot stem .43 which is disposed within the pivot hole in-the shut-01f 31 can be similarly shaped, so as -to fit closely within the square or other polygonal-shaped hole, and thus effect an. interlock. The head 42 may be provided with a central opening 46 of suitable depth, and the side wall 41 thereof may be provided with one or more pnovided with a plain square opening 66 and in which the end of the rod beyond the pin 56 is cut square as at. to fit into the square hole 60, so asto provide interlocking engagement between the rod l2 and the head 42. If desired,

other interlocking means may be provided. Thus for instance, the end of. the rod l2 may be shaped to a blade-like shape similar to vthe end of a screw driver and similar recess or recesses proslots 48. The operating rod l2 which extends.

through the-follower piston 46 in the gun barrel II, in the general manner shown in eo-pending application Serial No. 303,657, '15 provided with I a pin or lateral p ojection 50 which is adapted vided either in the pivot 'head 42 in the manner indicated in Figures 1, 2, and 3, or pressed into the sheet metal of the shut-oi! 31 in the general mannerindicated in Figures 4 and 5.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof and it is therefore desired that the present embodiments be considered in all respects as illustrative and not restrictive, reference being bad to the appended claims rather than to the foregoing description to indicate the scope of the invention.

Having thus described the invention, what is hereby claimed as new and desired to be secured by Letters Patent, is:

1. A fluid-dispensing device including a fluid reservoir having a discharge opening, a gun-barrel-receiving socket in communication with said discharge opening, a gun-barrel telescopically associated with said gun-barrel-receiving socket, a follower piston in, said gun-barrel, an operating rod extending through the rear end of said gun-barrel and through said follower piston and guided by said follower piston in a more or less axial line with respect to said gun-barrel. and a shuteoif operatively associated with the discharge opening of said reservoir, the operating rod and the shut-off bearing complementary engageable motion-transmitting. means whereby the shut-off may be moved into either its open or closed position, at will, by and through said operating rod while the gun-barrel is telescopically associated with said gun-barrel-receiving socket.

2. Fluid-dispensing apparatus including a fluid-reservoir having a discharge opening, a gunbarrel-receiving socket in communication with said discharge opening, a gun-barrel telescopically associated with said gun-barrel-receiving socket, a follower piston-in said gun-barrel, a rotatable and axially movable operating rod extending through the rear end of said gun-barrel and through said follower piston and guided by said follower piston in a more or less axial line with respect to said gun-barrel, and rotary shutoff operatiyely associated 'with thedischarge opening of said reservoir, the operating rod and the shut-off bearingcomplementary engageable motion-transmitting means whereby the shut-oi! may be rotatably moved into either its open or closed position, at will; by and through said oper ating rod while the gun-barrel is telescopically associated with said gun-barrel-receiving socket. -3. Fluid-dispensing apparatus including a. fluid-reservoir having a discharge opening, a

gun-barrel-receiving socket in communication. with said discharge opening, a gun-barrel tele-.

scopically associated with said gun-barrel-receiving socket, a follower piston in said gun-barrel.

a rotatable and axially movable operating rod extending through the rear end ofsaid gun-barrel and through said follower'plston and'guided by said follower piston .in a more or less axial line with respect to said gun-barrel, and a rotary shut-off operatively associated with the discharge opening of said reservoir, the operating rod and the shut-off bearing complementary motiontransmitting means, engageable with each other and disengageable from each other by axial movements of the rod, whereby the shut-off may be rotatably moved into either its Open or closed position, at will, by and through said operating rod while the gun-barrel is telescopically associated with said gun-barrel-receiving socket.

4. Fluid-dispensing apparatus "including a fluid-reservoir having a discharge opening, a

gun-barrel-receiving socket in communication with said'discharge opening, a gun-barrel telescopically associated with said gun-barrel-resaid rod into anti-rotational interlocking engagement by relative axial movement of the rod, whereby the displacement of said shut-oil. into either its open or closed position may be effected, at will, by and through said operating rod while i the gun-barrel is telescopically associated with said gun-barrel-receiving socket.

EDWIN P. SUNDHOLM. 

